Vester is Dori’s father. When he is undergoing treatment for cancer, Dori takes his leftover prescription painkillers and sells them so she can buy herself more opioids and other drugs she prefers. Vester dies while Demon and Dori are dating, and Demon is not sure that Dori will ever recover from his death. Demon’s prediction proves heartbreakingly accurate, as Dori dies of an overdose not long after Vester’s death.